The layout is not correct:
http://fs1.directupload.net/images/150507/jy92czbv.png
Also would may be useful to add this as a permission option in the admin panel instead of a filter.
There is a button to add images missing for users who dont have the permission to access the media library”:
http://fs2.directupload.net/images/150507/iz27fmcs.png
Please change the error to be shown for every single field instead of a general “Some fields are empty” error, like this: 
Is it possible for me to remove Tags option while posting a question, and how do i do it..?